<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>添加商品</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图 -->
    <el-card style="height:600px">
      <el-alert  center
    title="添加商品信息"
    type="info">
  </el-alert>
  <el-steps :space="200" :active="active-0" finish-status="success">
    <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
</el-steps>
<el-form :model="addForm"  ref="addFormRef" label-width="100px" class="demo-ruleForm">
<el-tabs :tab-position="'left'" style="height: 300px;" v-model="active" :before-leave="bf" @tab-click="tabclick">
    <el-tab-pane label="基本信息" name="0">
      <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="addForm.goods_name"></el-input>
      </el-form-item>
      <el-form-item label="商品价格" prop="goods_price">
              <el-input v-model="addForm.goods_price" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input v-model="addForm.goods_weight" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input v-model="addForm.goods_number" type="number"></el-input>
            </el-form-item>
            <el-form-item label="商品分类" prop="goods_cat">
              <el-cascader expand-trigger="hover" :options="catelist" :props="cateProps" v-model="addForm.goods_cat" @change="handleChange">
              </el-cascader>
            </el-form-item>
    </el-tab-pane>
    <el-tab-pane label="商品参数" name="1">
      <el-form-item :label="item.attr_name" v-for="item in manyDate" :key="item.attr_id">
              <!-- 复选框组 -->
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox :label="cb" v-for="(cb, i) in item.attr_vals" :key="i" border></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
    </el-tab-pane>
    <el-tab-pane label="商品属性" name="2">
      <el-form-item :label="item.attr_name" v-for="item in onlyDate" :key="item.attr_id">
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
    </el-tab-pane>
    <el-tab-pane label="商品图片" name="3">
      <el-upload :action="uploadURL" :on-preview="handlePreview" :on-remove="handleRemove" list-type="picture" :headers="headerObj" :on-success="handleSuccess">
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
    </el-tab-pane>
    <el-tab-pane label="商品内容" name="4">
      <el-button type="primary" class="btnAdd" @click="add">添加商品</el-button>
      <quill-editor v-model="addForm.goods_introduce"></quill-editor>
            <!-- 添加商品的按钮 -->
            
    </el-tab-pane>
  </el-tabs> 
  </el-form>
    </el-card>
    <el-dialog title="图片预览" :visible.sync="previewVisible" width="50%">
      <img :src="previewPath" alt="" class="previewImg">
    </el-dialog>
 </div>
</template>

<script>
import { getToken } from '../../utils/storage'
import {getsp,getcate,getonlycate,addform} from '@/api/user'
export default {
  computed: {
    cateId() {
      if (this.addForm.goods_cat.length === 3) {
        return this.addForm.goods_cat[2]
      }
      return null
    }
  },
  methods: {
    add() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) {
          return this.$message.error('请填写必要的表单项！')
        }
        // 执行添加的业务逻辑
        // lodash   cloneDeep(obj)
        const form = JSON.parse(JSON.stringify(this.addForm))
        form.goods_cat = form.goods_cat.join(',')
        // 处理动态参数
        this.manyDate.forEach(item => {
          const newInfo = {
            attr_id: item.attr_id,
            attr_value: item.attr_vals.join(' ')
          }
          this.addForm.attrs.push(newInfo)
        })
        // 处理静态属性
        this.onlyDate.forEach(item => {
          const newInfo = { attr_id: item.attr_id, attr_value: item.attr_vals }
          this.addForm.attrs.push(newInfo)
        })
        form.attrs = this.addForm.attrs
        console.log(form)

        // 发起请求添加商品
        // 商品的名称，必须是唯一的
       let res  = await addform(form)
        console.log(res);
        if (res.meta.status !== 201) {
        return  this.$message.error(res.meta.msg)

        } else {
          this.$message.success('添加商品成功！')
        this.$router.push('/goods')
        }


        
       
      })
    },
    handleSuccess(response) {
      console.log(response)
      // 1. 拼接得到一个图片信息对象
      const picInfo = { pic: response.tmp_path }
      // 2. 将图片信息对象，push 到pics数组中
      this.addForm.pics.push(picInfo)
      console.log(this.addForm)
    },
    handleRemove(file) {
      // console.log(file)
      // 1. 获取将要删除的图片的临时路径
      const filePath = file.response.tmp_path
      // 2. 从 pics 数组中，找到这个图片对应的索引值
      const i = this.addForm.pics.findIndex(x => x.pic === filePath)
      // 3. 调用数组的 splice 方法，把图片信息对象，从 pics 数组中移除
      this.addForm.pics.splice(i, 1)
      
    },
    handlePreview(file) {
      console.log(file)
      this.previewPath = file.response.url
      this.previewVisible = true
    },
    async tabclick() {
      if (this.active == '1') {
       let res =  await getcate(this.cateId,{sel:'many'})
        // console.log(res);
        res.data.forEach(item => {
          item.attr_vals =
            item.attr_vals.length === 0 ? [] : item.attr_vals.split(' ')
        })
       this.manyDate = res.data
      } else if (this.active == '2') {
        let res =  await getonlycate(this.cateId,{sel:'only'})
        console.log(res);
        this.onlyDate = res.data
      }
    },
    bf(activeName, oldActiveName) {
      // console.log('即将离开的标签页名字是：' + oldActiveName)
      // console.log('即将进入的标签页名字是：' + activeName)
      // return false
      if (oldActiveName === '0' && this.addForm.goods_cat.length !== 3) {
        this.$message.error('请先选择商品分类！')
        return false
      }
    },
    handleChange() {
      console.log(this.addForm.goods_cat)
      if (this.addForm.goods_cat.length !== 3) {
        this.addForm.goods_cat = []
      }
    },
    async getcatlist() {
      let res=  await getsp()
      console.log(res);
      this.catelist = res.data
    }
  },
  created() {
    this.getcatlist()
  },
  data() {
    return {
      previewPath: '',
      previewVisible: false,
      headerObj: {Authorization:getToken()},
      uploadURL:'https://www.liulongbin.top:8888/api/private/v1',
      onlyDate:[],
      manyDate:[],
      cateProps: {
        label: 'cat_name',
        value: 'cat_id',
        children: 'children'
      },
      catelist:[],
      active: 0,
      addForm: {
        goods_name: '',
        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        // 商品所属的分类数组
        goods_cat: [],
        // 图片的数组
        pics: [],
        // 商品的详情描述
        goods_introduce: '',
        attrs: []
      },
    }
  },
}
</script>

<style lang="less" scoped>
.ql-editor {
  min-height: 1100px;
}
</style>
